So I was thinking:
-Conjuration
-Enchanting (so I can enchant equipment for dead thralls)
-Light Armor (that dragon priest mask is all I need cause conjuration doesnt svck magicka that quickly

and what else?
I want to contribute the battle to so I was thinking maybe archery or one handed?
dont really want to do destruction... but maybe restoration would come in handy? dunno what else to choose the build seems kind of boring

I went with archery and it's a lot of fun. You can support your pet and possible dog and companion from a safe distance. Illusion could be fun to add as well, making enemies fight each other for a while to create extra mayhem. Perhaps blacksmithing to craft yourself a set of dragon armor in the end?

A ranged attack (either Destruction or Archery) and Smithing would be a good shout.

Conjuration has bound weapons. You can use them.

Once you get conjuration all the way up, and especially with twin souls, armor is overkill IMO.

I hear normal enchanted weapons are better than conjured...
I will probably only use those for soul traps